Found my DS Lite from five years ago. Battery still full, clock only 5 minutes fast. Guess it's time for surgery. : r/gaming
Replacement Battery for Nintendo DSi XL by Mars Devices - Walmart.com
Nintendo DSi XL: Nintendo throws a great system under bus | Ars Technica
CENIFENX DSi Battery, TWL-003 3.7V 840mAh Replacement for Nintendo DSi, NDSi Game Player Battery, with Repair Tool Kit (Not for Nintendo DSi XL DSi LL DS Lite)
Double the 2DS Battery Life - GeekDad
Nintendo DSi - Wikipedia
Nintendo DSi XL review: Nintendo DSi XL - CNET
Battery Pack (New Nintendo 3DS XL, Nintendo 3DS XL) - Nintendo Official Site
Review: Nintendo DSi XL | WIRED
Replacement Nintendo DSi XL Battery (3.7V, 0.9Ah, Li-Ion) | Battery Mart
Cameron Sino Battery For Nintendo Ds Xl,dsi Ll,dsi Xl,utl-001 - Digital Batteries - AliExpress
For Nintendo DSi XL Console UTL-001 Replacement Battery UTL-003 Tool USA | eBay
DSi XL Battery Test: New "Cameron Sino" is a decent replacement option : r/nds
Replacement UTL-003 Battery for Nintendo DS XL, DSi LL, DSi XL, UTL-001 - Walmart.com
Replacement Nintendo DSi Battery (3.7V, 0.6Ah, Li-Ion) | Battery Mart
Assistance Nintendo : How Long Does the Rechargeable Battery Last Before it Needs to be Charged Again?
Amazon.com: Nintendo DSi XL Rechargeable Battery UTL-003 : Video Games
Nintendo: 3DS Battery Lasts 3-5 Hours | WIRED
Nintendo DSi Battery Replacement - iFixit Repair Guide
Inside the Nintendo DSi « bunnie's blog
Nintendo Support: How to Charge the Battery
Nintendo Dsi Xl Ndsi Xl Utl-003 2000 Mah Rf-016 Li-ion Replacement Battery # Nintendo Dsi Xl (utl-001) - Batteries - AliExpress